If you use an ODBC application such as Microsoft Access
that exports databases using one-level names, you should use the ODBC
Data Source Administrator to define a User library. SAS usually places
any data set that has a one-level name in the Work library, which
is deleted at the end of the SAS session. But, if a User library has
been defined, SAS places all one-level named data sets in the User
library, which is saved at the end of the SAS session. In a multi-user
environment, multiple client connections to a SAS server can each
have its own User library defined.